nsDOMFile.h

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- *//* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is mozila.org code. * * The Initial Developer of the Original Code is * Mozilla Corporation * Portions created by the Initial Developer are Copyright (C) 2007 * the Initial Developer. All Rights Reserved. * * Contributor(s): * Dave Camp <dcamp@mozilla.com> * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */#ifndef nsDOMFile_h__#define nsDOMFile_h__#include "nsICharsetDetectionObserver.h"#include "nsIDOMFile.h"#include "nsIDOMFileList.h"#include "nsIInputStream.h"#include "nsCOMArray.h"#include "nsCOMPtr.h"#include "nsString.h"class nsIDOMDocument;
class nsIFile;
class nsIInputStream;
class nsDOMFile : public nsIDOMFile,
public nsICharsetDetectionObserver
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMFILE
nsDOMFile(nsIFile *aFile)
: mFile(aFile)
{}
~nsDOMFile() {}
// from nsICharsetDetectionObserver
NS_IMETHOD Notify(constchar *aCharset, nsDetectionConfident aConf);
private:
nsCOMPtr<nsIFile> mFile;
nsString mContentType;
nsCString mCharset;
nsresult GuessCharset(nsIInputStream *aStream,
nsACString &aCharset);
nsresult ConvertStream(nsIInputStream *aStream, constchar *aCharset,
nsAString &aResult);
};
class nsDOMFileList : public nsIDOMFileList
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMFILELIST
PRBool Append(nsIDOMFile *aFile) { return mFiles.AppendObject(aFile); }
PRBool Remove(PRUint32 aIndex) { return mFiles.RemoveObjectAt(aIndex); }
void Clear() { return mFiles.Clear(); }
nsIDOMFile* GetItemAt(PRUint32 aIndex)
{
return mFiles.SafeObjectAt(aIndex);
}
static nsDOMFileList* FromSupports(nsISupports* aSupports)
{
#ifdef DEBUG {
nsCOMPtr<nsIDOMFileList> list_qi = do_QueryInterface(aSupports);
// If this assertion fires the QI implementation for the object in// question doesn't use the nsIDOMFileList pointer as the nsISupports// pointer. That must be fixed, or we'll crash...
NS_ASSERTION(list_qi == static_cast<nsIDOMFileList*>(aSupports),
"Uh, fix QI!");
}
#endifreturnstatic_cast<nsDOMFileList*>(aSupports);
}
private:
nsCOMArray<nsIDOMFile> mFiles;
};
#endif